Though FOX’s decision to revive The X-Files for an event series turned out somewhat surprising, fans of the iconic sci-fi series all wonder where new episodes will pick up, and who beside David Duchovny, Gillian Anderson and creator Chris Carter might return. Now, at least four famous alumni have been targeted, while Carter himself has revealed several tantalizing new details.

Take these with a modicum of salt for the moment, though TVWise (who first broke the revival’s impending greenlight) claims that series stars Mitch Pileggi (FBI boss Walter Skinner), Robert Patrick (Agent John Doggett) and Annabeth Gish (Agent Monica Reyes) have all been approached to return for the new six-episode series, albeit with no deals yet signed. Additionally, iconic “Smoking Man” William B. Davis has also been consulted about appearances (in spite of the character’s apparent demise), at least in a preliminary light.

Having largely filled in for Mulder and Scully through Seasons 8 and 9, Patrick may have scheduling conflicts with CBS’ Scorpion, while writers and producers Glen Morgan, Darin Morgan and Jim Wong will all return, with Frank Spotnitz also eyed to devote some time from Amazon’s The Man in the High Castle, and composer Mark Snow on board. As to the story itself, Carter said in a recent interview that the six-episode revival might be a mix of standalone stories and mythology ties, among them the purported 2012 alien colonization of Earth, and Mulder and Scully’s son William.

We’ll bring the latest details of FOX’s X-Files return as they arrive, but what stars and what stories should rear their heads when Mulder and Scully return to TV for six all-new hours?